Chinese Carbon MTB Forums
News:
Happy Holidays!
See likes
See likes given/taken
| Post info | No. of Likes |
|---|---|
Re: Lightcarbon: New LCR017-D (or Yishun R1058-D)
I actually prefer the LCR017 because I built it to fit my measurements. The geometry has a slightly longer reach and a lower stack. Surprisingly, I feel more comfortable with the lower stack, which is about 3 cm lower. The LT268 i built for a friend is more comfortable for him than the Canyon endurance bike he had before. That endurance bike (I forgot the model) had a ridiculously upright geometry. My friend isn't an athlete by any measure, i'm not even sure he can touch his toes, BUT the 268 fits him (we spent quite a bit of time looking at geometry tables and getting the right specs for him), and so he's now much, much faster on his bike, and more comfortable. I am trying to get him to refer to me as Jesus, but it's not working. November 21, 2024, 07:58:12 AM |
1 |
Re: Lightcarbon: New LCR017-D (or Yishun R1058-D)
My frame arrived today and all my worries about quality issues faded  Frame is a top notch without any wringles, cheese and etc. 
November 21, 2024, 10:59:52 AM |
1 |
Re: Lightcarbon: New LCR017-D (or Yishun R1058-D)
Since I'm a cyclist and not an aerospace engineer, I don’t have access to a wind tunnel to measure these things. What I can say is that my bike performs perfectly in all situations, even on descents at 80 km/h. I've never noticed any weird noises or whistles like the ones you get from roof racks on cars, so as far as I’m concerned, the square downtube isn’t a real issue at all. The drag would have to be insane for you to be able to hear it. A bus isn't aero. Therefore, that downtube can't be aero. Would you be faster on a kamm tail shaped down tube? almost certainly. Would you EVER see a bus shaped downtube on a TT bike? No. Do you see kamm tail shaped downtubes on TT bikes? Pretty much 100% of the time. Now, does it matter? If you like your bike, great. From my perspective, most of my riding is done on the flat, so i do care if i can save 5w at 40kmh, because i often ride at 40kmh. And from the perspective of people considering the frame, they should know that this feature can't possibly be fast. Whether it matters to them or not, is for them to decide. My frame arrived today and all my worries about quality issues fadedLovely bike! November 21, 2024, 12:04:50 PM |
1 |
Re: Lightcarbon: New LCR017-D (or Yishun R1058-D)
Yessss. I have it too. It's super annoying. I had a puncture last ride and it took me forever to get the thru axle aligned with the wheel. Is quite annoying November 21, 2024, 12:58:50 PM |
1 |
Re: Lightcarbon: New LCR017-D (or Yishun R1058-D)
Has anyone out in the real world been able to quantify whether or not the square downtube is actually causing significant drag? Meaning, does the riding dynamics on road feel draggy? Can you actually tell? I spent a significant amount of time riding side by side with friends on flat terrain, and as someone who pays close attention to power data, I feel confident that this bike doesn't come with an aero penalty. Based on what I've read about aerodynamics, the downtube is positioned in the 'dirty air' created by the front wheel, so having a slightly less aerodynamic shape doesn’t significantly impact performance. November 21, 2024, 02:32:06 PM |
1 |